Complete loss of teeth, unspecified cause, class IV

This code signifies a patient's complete edentulism, meaning the absence of all natural teeth in both the maxillary and mandibular arches. The etiology of this tooth loss is not specified, and it is classified as Class IV, indicating severe ridge resorption.

Use this code when documentation clearly states complete edentulism without a specified cause, and the clinical assessment confirms Class IV ridge resorption. This is often seen in patients presenting for full denture fabrication or implant-supported prostheses where the underlying reason for tooth loss is not detailed.

• Ensure documentation explicitly states "complete loss of teeth" or "edentulism" and "Class IV" ridge resorption.
• If a specific cause for tooth loss is documented (e.g., trauma, periodontal disease), a more specific code from the K08.1 series should be used.
• Do not use this code if only partial edentulism is present; refer to codes within K08.4.